A clade of scaphopods and cephalopods repeatedly has been proposed based on morphological data, sometimes with one or the other or both together allied with gastropods [ 1], and was recovered by molecular data [ 52] and broadly within some pan-molluscan molecular phylogenies [ 10, 21].
Although the phylogenetic hypothesis used by Miller [21] is based on morphological data it represents to date one of the most comprehensive and accepted phylogenetic hypothesis for Orbiculariae, particularly for resolving relationships among the Nephilids.
Despite considerable disagreement among morphology-based hypotheses, this basic division is supported by nearly all phylogenetic analyses based on morphological data [ 13- 15, 19, 22, 95, 191].
These results are compared with previous phylogenetic hypotheses based on morphological data.
This phylogenetic hypothesis shares a number of well-supported clades with a previously published phylogenetic hypothesis based on morphological data, though statistical support for several nodes is weak.
Our results marginally support theridiid monophyly, although the phylogenetic structure of the outgroup is unstable and largely contradicts current phylogenetic hypotheses based on morphological data.
Based on morphological data and on the distribution of VGCCs38 (Supplementary Fig. 2), we developed a model of a simple PF-MLI synapse AZ (Fig. 1c; Supplementary Fig. 2), and we simulated the spatio-temporal profile of [Ca2+] following one AP (Fig. 1d).
species based on morphological data.
The phenetic similarity of the studied species based on morphological data is presented in Fig. 2.
Manuscripts describing new taxa based on morphological data only are suitable for submission; however information from multiple sources, such as ultrastructure, phytochemistry and molecular evidence are desirable.
Based on morphological data the bulk of original species is summarized as a single species, A. aurita, which is deemed to be an ecological generalist and occupy worldwide habitats of all but north polar oceans.
